Sorry I don't have rear but I do have a brand new pair of frount shock never used.
If you need them they are KYB that didn't use as went down the kone path. they are still in there boxs.
My father in law uses this all the time on his Hudson Chaises.It's very effective in removing the build up of stuff from the rail but won't recommend on thin metal as rips in to it.
Bruce
from my experience eather the starter has warn teeth or your ring in stuffed if it the ring you can change over in about five hour with a little bit of help and a lot sweat and tears.
Bruce PS I no mechanic and I did it